Last official estimated population of Newton County was 58,148 (year 2014)[1]. This was 0.018% of total US population and 1% of total Missouri state population. Area of Newton County is 626.6 mi² (=1622.8 km²), in this year population density was 92.80 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Newton County population in 2026 would be 58,250 [0].
Historical population of Newton County for period 1840-2014 [1] , [2] , [3]:
Estimated population for 2014[1]. Population density is in p./sq.mi [4]. Changes are for period 2010-2015. Value is %/year. Boundary lines are approx. 2012 [5]. Click on flag to hide it.
Population • Density • Changes • Legends • Position

[1840-1850] +1.19 %/yr
[1850-1860] +8.12 %/yr
[1860-1870] +3.24 %/yr
[1870-1880] +3.98 %/yr
[1880-1890] +1.55 %/yr
[1890-1900] +2.02 %/yr
[1900-1910] +0.05 %/yr
[1910-1920] -0.86 %/yr
[1920-1930] +0.8 %/yr
[1930-1940] +0.75 %/yr
[1940-1950] -0.28 %/yr
[1950-1960] +0.64 %/yr
[1960-1970] +0.9 %/yr
[1970-1980] +2.11 %/yr
[1980-1990] +0.92 %/yr
[1990-2000] +1.7 %/yr
[2000-2005] +1.24 %/yr
[2005-2010] +0.77 %/yr
[2010-2014] +0.01 %/yr
Looking for settlements in Newton County? Visit this page: Settlements in Newton County, MO
Population of Newton County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1907 | 1780 | 3,687 |
| 5 to 9 | 2072 | 1908 | 3,980 |
| 10 to 14 | 2126 | 1952 | 4,078 |
| 15 to 19 | 2134 | 1905 | 4,039 |
| 20 to 24 | 1803 | 1792 | 3,595 |
| 25 to 29 | 1722 | 1666 | 3,388 |
| 30 to 34 | 1645 | 1693 | 3,338 |
| 35 to 39 | 1632 | 1580 | 3,212 |
| 40 to 44 | 1754 | 1766 | 3,520 |
| 45 to 49 | 1870 | 1808 | 3,678 |
| 50 to 54 | 2098 | 2154 | 4,252 |
| 55 to 59 | 1949 | 2074 | 4,023 |
| 60 to 64 | 1784 | 1839 | 3,623 |
| 65 to 69 | 1599 | 1668 | 3,267 |
| 70 to 74 | 1205 | 1394 | 2,599 |
| 75 to 79 | 854 | 1067 | 1,921 |
| 80 to 84 | 549 | 751 | 1,300 |
| 85+ | 392 | 706 | 1,098 |
Newton County resident population estimates by Sex, Race, and Hispanic Origin[1b]. For full list of abbrevations see: population.us/about page.
| Race | Male | Female | Total |
| NH | 27526 | 28149 | 55,675 |
| WAC | 27237 | 27817 | 55,054 |
| WA | 26356 | 26995 | 53,351 |
| NHWAC | 25840 | 26595 | 52,435 |
| NHWA | 25028 | 25840 | 50,868 |
| H | 1569 | 1354 | 2,923 |
| IAC | 1384 | 1240 | 2,624 |
| HWAC | 1397 | 1222 | 2,619 |
| HWA | 1328 | 1155 | 2,483 |
| NHIAC | 1249 | 1127 | 2,376 |
| TOM | 918 | 863 | 1,781 |
| NHTOM | 848 | 788 | 1,636 |
| IA | 763 | 668 | 1,431 |
| NHIA | 675 | 608 | 1,283 |
| AAC | 560 | 586 | 1,146 |
| NHAAC | 520 | 566 | 1,086 |
| BAC | 557 | 435 | 992 |
| AA | 452 | 490 | 942 |
| NHBAC | 521 | 397 | 918 |
| NHAA | 423 | 478 | 901 |
| NAC | 293 | 300 | 593 |
| BA | 343 | 228 | 571 |
| NHBA | 322 | 210 | 532 |
| NA | 263 | 259 | 522 |
| NHNAC | 258 | 262 | 520 |
| NHNA | 230 | 225 | 455 |
| HIAC | 135 | 113 | 248 |
| HIA | 88 | 60 | 148 |
| HTOM | 70 | 75 | 145 |
| HBAC | 36 | 38 | 74 |
| HNAC | 35 | 38 | 73 |
| HNA | 33 | 34 | 67 |
| HAAC | 40 | 20 | 60 |
| HAA | 29 | 12 | 41 |
| HBA | 21 | 18 | 39 |
• Benton County population
39.7 mi,
173°
• Jasper County
20.5 mi,
359°
• Delaware County
44.2 mi,
216°
• Lawrence County
31 mi,
63°
• Barry County
31.2 mi,
117°
• Ottawa County
26.3 mi,
259°
• McDonald County
19.2 mi,
181°
• Cherokee County
33.4 mi,
302°
• Barton County
40.9 mi,
359°
• Dade County
44.8 mi,
36°
[0] Calculated by population.us from last known population growth rate, not official data.
[1] County population - 2014, archived from the original, retrieved 02/23/2016
[1b] Annual County Resident Population Estimates by Age, Sex, Race, and Hispanic Origin, (used only data for 2014) archived from the original, retrieved 02/23/2016
[2] County population - 2000-2010, archived from the original, retrieved 02/23/2016
[3] Population of States and Counties of the United States: 1790 to 1992, PDF, 15 Mb, census.gov, retrieved 02/23/2016
[4] County area, latitude longitude data, retrieved 02/23/2016
[5] County boundaries, CSV files on boundaries.us, retrived 03/18/2016
*Wayne, Crawford Missouri Notes
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